We got air in the GT last year going over a wave that was atleast a 15 footer doing about 25 knots. I thought for sure the boat was going to break apart on impact but only the windward rudder kicked up and locked itself because I was holding the tiller when I got detached from the boat. We were weightless for long enough to go through a few scenarios in my head as to what might happen when we land. I still can't believe the toughness of the N20 after that day.